Casing for a packaged air conditioning unit



FIG. 1 is a perspective view taken from the front and right side of acasing for a packaged air conditioning unit showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a rear elevational view thereof.

The ornamental design for a casing for a packaged air conditioning unit,as shown.